Proszę szeptać, bo dzieci już śpią.

Here proszę means please.

Literally, proszę comes from the verb prosić, meaning to ask or to request, so proszę szeptać is literally something like I ask you to whisper. In normal English, though, the natural translation is just Please whisper.

A useful thing to know is that proszę has several common meanings in Polish, depending on context, for example:

• please
• here you are
• go ahead
• I would like

In this sentence, it is simply a polite request.

Because Polish often uses proszę + infinitive to make a polite request.

So:

• proszę szeptać = please whisper

This structure is very common in polite speech, instructions, announcements, and signs. It sounds softer and less direct than a plain imperative.

It is similar to saying:

• Please be quiet
• Please wait
• Please sit down

rather than giving a blunt command.

It can be either one person or more than one person.

That is one useful feature of proszę + infinitive: it does not show number. The context tells you whether the speaker is addressing one person or a group.

So proszę szeptać can mean:

• Please whisper to one person
• Please whisper to several people

Bo means because.

It is a very common, natural, everyday word. In spoken Polish, bo is often the most normal choice.

You could also use ponieważ, which also means because, but it sounds more formal or more written.

So:

• bo dzieci już śpią = because the children are already asleep / sleeping
• ponieważ dzieci już śpią = same basic meaning, but more formal

Już usually means already, but in sentences like this it often has a broader sense such as:

• already
• by now
• now

So dzieci już śpią suggests that the children have already fallen asleep or are asleep now, which explains why the speaker is asking for whispering.

If you remove już, the sentence still works:

• Proszę szeptać, bo dzieci śpią.

But już adds the idea that the children are asleep at this point already, which makes the request sound more natural.

Because dzieci is the plural form of dziecko.

• dziecko = child
• dzieci = children

This is an irregular plural, so it does not follow the most basic pattern that learners first meet.

In this sentence, dzieci is the subject, so it is in the nominative plural:

• dzieci już śpią = the children are already sleeping / asleep

Śpią is the 3rd person plural present tense form of spać, which means to sleep.

So:

• spać = to sleep
• śpię = I sleep / am sleeping
• śpisz = you sleep / are sleeping
• śpi = he/she/it sleeps / is sleeping
• śpią = they sleep / are sleeping

Notice that the stem changes from spa- to śpi- in the present tense. That is just something you have to learn with this verb.

Polish does not have a separate present continuous form like English am sleeping / are sleeping.

So śpią can mean:

• they sleep
• they are sleeping

depending on context.

In this sentence, because the speaker is asking for quiet right now, dzieci już śpią is naturally understood as:

• the children are sleeping or
• the children are asleep

English chooses between those forms, but Polish uses the same present tense verb form.

Because in Polish, a comma is normally used before bo when it introduces the reason.

So the punctuation in:

• Proszę szeptać, bo dzieci już śpią.

is standard and correct.

This is a good habit to remember: in Polish, commas are often used more regularly before linking words like bo, że, ponieważ, and others than English learners may expect.

Yes, Polish word order is more flexible than English word order, but the version here is the most neutral and natural.

• Proszę szeptać, bo dzieci już śpią.

This sounds straightforward: first the request, then the reason.

You can move words around in Polish, but that usually changes the emphasis. For example, moving już or dzieci can make the sentence sound more marked or contrastive.

So for a learner, this sentence is a good model of normal, neutral word order.

A few sounds here are especially worth noticing:

• sz in proszę and szeptać sounds roughly like English sh, but harder
• ś in śpią is a softer sound than sz
• ą in śpią is a nasal vowel; to English ears it may sound a bit like -on or -om, but it is not exactly the same

Very rough English-style approximations would be:

• proszę ≈ PRO-sheh
• śpią ≈ shpyon

These are only approximations, but they can help at the beginning. The important thing is to hear that sz and ś are different sounds in Polish.